Calculating-machine.



O. MALGHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13,1911. RENEWED MAY 4, 1914.

1,120,318. Patented Dec. 8, 1914.

6 SHEETS-SHEET 1.

O. MALCHER. CALCULATING, MACHINE. APPLICATION FILED JULY 12, 1911.RENEWED MAY 4, 1914.

1,120,318. Patented Dec. 8,1914.

6 SHEETS-SHEET 2.

0. MALOHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13, 1911. RENEWED MAY 4, 1914. 1 1 20, 3 1 8.

Patented Dec. 8,1914.

6 SHBETSSHEET 3.

O. MALUHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13, 1911. RENEWED MAY 4, 1914.

Patented Dec. 8, 1914.

6 SHEETS-SHEET 4.

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O. MALUHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13, 19m. RENEWED MAY 4, 1914.

Patented Dec. 8, 1914.

6 SHEETSSHEET 5.

0. MALUHER. CALCULATING MACHINE.

APPLICATION-FILED JULY 13, 1911. RENEWED MAY 4, 1914.

Patented Dec. 8, 1914.

6 SHEETSSHBET 6.

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OTTO MIALCHER, OF GHIGAGO, ILLINOIS, ASSIGNOR TO CARLIN CALCULATOR 00.,OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CALCULATING-MACHINE.

ancers.

Specification. of Letters Patent.

Patented Dec. 8, 1914.

Application filed July 13, 1911, Serial K0. 638,277. Renewed May 4,1914. Serial No. 836,358.

To all whom it may concern:

Be it known that I, O'r'ro MALOHER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois,.haveinvented certain new and useful Improvements inCalculating-Machines, of which the following is a specification.

This invention relates in general to calculating machines of the type inwhich there is employed a register embodying a plurality of rotatablenumber bearing members or wheels upon which the amounts are registered,the members being controlled by individual selecting mechanisms wherebythey may be sent for variable movement by a driving mechanism which isunder the control of the operator through the agency of a suitablecontroller bar or key; the selecting mechanism of each member beingitself con-trolled by a plurality of keys.

More particularly the invention relates to means in a machine of thisclass whereby the register may be quickly cleared of any amount that maybe registered thereon and the number bearing members restored to theirzero position, that is, with the zero of each of the number bearingmembers in the reading position.

The invention has for one of its objects to provide an improved machineof this class having means adapted to be set, at will, for clearing theregister and means for automatically rendering the clearing mechanisminactive when the register has been thus cleared;

A further, object is to provide an improved machine of this class havingmeans for arresting the movement ofthenumber bearing members under theinfluence of the clearing mechanism whereby overthrow of the numberbearing members will be prevented.

A further object is to provide an improved machine of this class whichwill be simple and durable in construction, and effective and efiicientin operation.

To the attainmentof these ends and the accomplishment of other new anduseful olejects as will appear, the invention consists in the featuresof novelty in substantially the construction, combination and arrangement of the, several parts'hereinafter "m'o fully described and claimedand shown mthe accompanying drawings exemplifying the invention, and inwhich Figure 1 is a vertical longitudinal sectional View of an improvedmachine of this class constructed in accordance with the principles ofthis invention. Fig. 2 is a sectional view on line 2-2, Fig. 1. Fig. 3is a sectional view on line 3-3, Fig. 1. Fig. 4: is an irregularsectional view taken on lines 14:, Figs. 2 and 3, with parts omitted.Fig. 5 is a sectional view taken on line 5-5, Fig. 1. Fig. 6 is asectional view on line 6-6, Fig. 5. Fig. 7 is a detail sectional view online 7-7, Fig. 6. Fig. 8 is a sectional view on line 8-8, Fig. 1. Fig. 9is an enlarged detailplan view of a portion of the carrying mechanism.Fig. 10 is a sectional view taken on lines 10-10, F'rgs2 and 3. Fig. 11is a sectional view on line 1111, Fig. 10. Fig. 12 is a sectional view.on line 12-12, Fig. 10. Fig. 13 is a perspective view of a detailReferring more particularly to the drawings and in the presentexemplificatiorf of the invention, the numeral 15 designates generally asupportingba-se upon whichthe structure is mounted and rising from thisbase are a plurality of uprights'"16, 1'1, 18, (see particularly Fig.1), which uprights are spaced from each other. These uprights may be ofany desired height and may be connected by tie rods or bolts 19', 20, asshown. The upright 16 is preferably located some distance from the frontwall of the machine and journaled in these uprights 16, 17, and 18 are aseries of shafts 21, preferably nine in number, and are arrangedparallelwith each other to extend longitudinally of the machine. Theforward-extremities of the shafts 21 project slightl beyond the upright16 and secured to eac of these shafts is a bevel gear 22 with each ofwhich a companion gear 23 on a shaft 2d meshes. This shaft 24 extendstransversely with respect to the shafts 21 and is journalcd in suitablebearings 25 (see particularly Figs. 1 and'2) so that when the-shaft 24is rotated the shafts 22' will be correspondingly rotated. Secured toeach of the shafts21 is a mutilated drum 26 preferably comprised of aseries of mutilated gears,-

nine in number, arranged in close proximity to each other and thesemutilated drums on lation with respect to eachother and the gears ofeach series are provided with different num-bers of teethranginggradually from 1 to 9. J ournaled in the uprights 16,. l7 and 18 andabove each of the shafts 21 is another shaft 27 upon each of which ismounted a traveling. gear 28. These gears 26, 28 constitute portions ofselecting mechanisms for controlling the degree of rotation of thenumber bearing members of the regis- 1 32 is mounted in suitablebearings 33 and an elastic member 34 connected by one end to i an arm 35on the slide 32 and by its other end to a fixed support 36 is providedwhich tends norma'lly to move the slide 32 in a direction to move thetraveling gear 28 into a position to mesh with the gear of the series 26having but one tooth. The bearings 33 depend from a fixed portion 37 0fthe mechanism and the slide 32 is held against adjustmentunder thevinfluence of the elastic member 34 by meansof an arm 38 on a rock shaft39. .This rock shaft 39 is journaled in suitable bearings and iscontrolled by a series of keys 40 so that when any one of the keys ofthe series is actuated, the shaft 39 will be rocked against the tensionof an.

elastic member 40 to move the arm 38 out of the path of movement of theslide 32 and thereby release the slide to permit the latter to be movedunder the influence of the elas-- tic member 34 to adjust the-travelinggear 28 with respect to the gear 26. The degree of movement of the slide32 is controlled by the respective keys 40. The specific constructionandoper-ation, however, of this portion of the mechanism forms nofpartof the present invention but constitutes the subject matter of anotherapplication. Sufficeit to say'that the slide 30 and the stems of thekeys 40 are so constructed that when [one of the keys- 40 is actuated,the ear 28- will be moved a distance correspon mg tothe key actuated andthereby position the gear 28 to mesh with the gear of the series '26corresponding to that position. In this position it will be manifestthat a degree of rotation may be imparted to the shaft 27 correspondingto the number of teeth on the particular gear 26 with which gear 28meshes, and inasmuch as the number bear-' ing members 41 of the registerare secured to the shafts 27 for rotation therewith, .it will beapparent that the rotation of shafts 27 will impart a col-resendingdegree of matically releasethe shafts 21, 24, with re.-

spect to the power shaft 42 after the former" shafts have made onecomplete rotation so that they will stop after this rotation, there isprovided on the shaft 42 a star or toothed wheel 43 (shown more clearlyin Figs. 3 and 4) which is secured to the shaft 42 for rotationtherewith. Moimted loosely upon theshaft 42 is a disk 44 and pivotallysupported by this disk is a dog or pawl 45 which cooperates with thestar or toothed wheel 43 and an elastic member 46 tends normally to movethe dog or pawl 45 in a direction to engage the star or toothed wheel 43and thereby lock the disk 44 and a gear 46 which is carried by the disk44 for rotation with the shaft 42. The gear 46 meshes with the gear 47which is secured to and for rotation with a shaft 48. This shaft 48 isarranged parallel with the shaft 42 and'is journaled in the uprights 17and 16. Secured to the shaft 48 and for rotation therewith is a bevelgear '49 (see particularly Fig. 2) and this bevel gear 49 meshes with acompanion gear 50 on the shaft-24. Thus it will'be manifest that whenthe gear 46 is locked to the shaft 42 for rotation therewith, the gear47 with which it meshes will also be rotated and as the gear 47 issecured to the shaft 48 for rotation therewith this shaft :will berotated as well as the shaft 24, The gear 46 is normally unlocked withrespect to the shaft 42 and in order to accom' lish this, there isprovided another dog 51 see Figs. 3 and 4) which is secured to a 'rockshaft 52 for rotation therewith and this shaft 52 is journaled insuitable bearings above and in proximity to the shaft 42 so that whenthe dog 50 is rockedin a manner to be set forth the shaft 52 will also.be rocked. This dog 51 is adapted to be moved by means of an elasticmember 53 in a direction to cause its shouldered extremity 54 to benormally moved into the path of movement of a shoulder 55 on' the dog 45so as to rock the latter about its point of pivotal support on'the disk44 against the tension of the elastic member 46 to unlock the gear 46from the shaft 42. The dog 51is adapted to be rocked to disengagetheshoulder 55 of the dog 45 to release the latter by means of a controllerbar or key, the stem 56 of which is shown in Fig. 4, and when the dog ortoothed wheel 43. The stem 56 of the controller bar orkey is connectedwith a member designated generally by the reference numeral 57 which isloosely mounted which latter,

upon the shaft 52. A member 58 is pivotally supported by the member 57and is provided with a portion adapted to project over a shoulder 59 onthe dog 51 and an elastic member 60 is provided which is connected withthe member 58 and tends normally to move a portion thereof over theshoulder 59 of the dog 51 when the key stem 56 ismlevated so that. whenthe key stem is depressed the dog 51 will be rocked through'ithe mediumof the member 57 and the member 58. The key stem and the members 57,58', may be returned in any suitable manner, preferably by means of anelastic member 61. It will thus be manifest that each time the keystem56 is actuated, assuming the parts to be in the position shown in Fig.4, the dog, 51 will beactuated and the dog released. When the key stem56 is actuated a certain distance, the portion of the .member 58 whichprojects over the shoulder 59 will pass 06 of the shoulder and the'dog51 will be returned by the clas tic member 61 so that its extremity 54will be in a position to engage the shoulder on the dog 45 toautomatically unlock the gear 46lfromthe shaft 42.

After the completion of the calculation, and before another calculationcan be made, it is necessary to return the slides 32 and the travelinggears 28 to release the actuated key and restore the parts to theirnormal positions. This is accomplished by means of a rocking member 62(see Figs. 1 and 2) which is supported by arms 63 connected toa-Jockshaft 64 journaled in suitable supports and is so positioned that whenthe I shaft 64 is rocked in one direction the member 62 will engage thedepending portion or arm 35 on the slides 32 to move the latter againstthe tens on of the elastic member 34,

as has been before stated,.is provided for shifting the member 32longitudinally to move the gear 28 into a position to mesh with thegears 26. The shaft 64 is rocked at-the completion of the calculation bymeans of a suitable connection between the shaft 48 and the shaft 56which latter is arranged at right angles to the shaft 64. In. order tothus rock the shaft 64, the shaft 56 is provided with an arm 65 (seeFig. 2) which cohperates with an arm 66 on the shaft 64. Any suitableconnection is provided between the' shafts 48 and 56 so that the latterwill be operated intermittently. When the shaft 641s rocked to returnthe slides 32 and.

the gears 28,,tension is created upon an elastic member 67 (see Fig. 1)so that the member 62 may be returned to its normal position or theposition shown in Fig. 1 after the gears 28 and the slides 32 have beenmoved to their normal positions. In order to lock the shafts 27 againstoverthrow each is provided with an suitable mechanish such as a star ortoot ed wheel 68 (see Figs. 1 and 3) and a dog or pawl 69 which ispivotally mounted upon a suitable fixed support and adapted to co6peratewith the wheel 68 when a cam 7 0, secured on shaft 21, moves the doginto the space between two of the teeth of the wheel 68. All of theabove described parts, however, form no part of the present inventionbut constitute the subject matter of another pending ap plication.Suflice it to say that by the actuation of one of the keys 40v thetraveling gear 28 will be correspondingly set with relation to the gears26 and after the controller bar or key is actuated to depress the isprovided which is adapted to be rendered Inactive and activerespectively when the calculation is being performed, ,,a nd when theclearing operation is being performed. Any suitable means may beprovided for this purpose but a simple and efiicient means embodies agear 71 which is secured for ro tation with each of the shafts 21. Asthe clearing mechanism for each of the number bearin members 41 is thesame, tion 0t one will suliice. The gear 71 is secured to the shaft 21preferably in close proximity to the number bearing member 41 and; isprovided preferably with nine teeth 72. Slidably mounted upon the shaft27 is a sleeve 73 (see particularly Figs. 1, 6 and 7) to which sleeve isconnected a gear 74. This gear is provided with nine teeth so arrangedthat a space 7 5 of some size will be formed between two of the teeth.

This space 75 is so arranged with respect to the numbers 76 on thenumber bearing members 41-that when the zero of the number bearingmember is in position to be read through the sight glass 77 in the top 78 of the casing, the space 75 will be disposed in proximity to the teeth72 0f the gear 71. This construction will permit the number bearingmember 41 to remain in the zero position when the space 75 is adjacentthe the descrip- 3 periphery of the gear 71. This sleeve 73 is into aposition to mesh with the gear 71 and into a position where it will notmesh with the gear 71. It will therefore be manifest that if the gear 74is shifted on the shaft 27 into a position that itwill mesh with thegear 71, the shaft 27 will be rotated when the shaft 21 is rotatedinasmuch as the sleeve 73 is keyed to the shaft 27. Obviously when thegear 74 is moved into a position to mesh with the gear 71, therespective gears 28 must be in positions that they will not mesh withthe cooperating gears 26.

Inasmuch asthe direction of rotation of the number bearing members 41 isconstant, both during thecalculation and of the clearing operations, andinasmuch as the shaft 27- is rotated-with some speed, it will bemanifest that there might be a, tendenc to overthrow of the number.bearing mem ers 41 and in this event the number bearing members mightnot stop in the proper po-, sition when clearing that is, with the zeroin the reading position. In order to obviate this difficulty, there isprovided in the present exemplification ofthis invention a pin orprojection 79 (see Figs. 1 and 3) which projects from the .hub 80 of thenumber bearing member 41. A member 81 is mounted for sliding movement,"preferably upon spaced supports 83' (see particularly Fig. 3) which maybe arranged adjacent the extreme'number' bearing members of the series.These supports 83 are secured --to any fixed portion of the mechanismpreferably the support'18, and elastic members '84, such as coil springsor the. like, surround these supports and are disposedbetween theupright 18 and'the member 81. Projecting laterally beyond the member 81are a series of projections 85,0119 for each of the number bearingmembers 41 and are adapted to respectivelycooperate with the pins orprojections 79. The pins or projections 85 andthe supports 83 are soconstructed that the normal tendency of the elastic members 84 is tomove the pins or 'rojections 85 away from the pins or proections 79 andout of the path of the rotary movement of the latter.- The gears 74 arepreferably arranged in staggered relation with respect to each other sothat some of the gears 74 will be disposed in close proximity to themember 81 and inasmuch, as all of the gears 74 will be shifted on theshafts -27 eachtime the clearing mechanism is set, itwill be manifestthat the member 81 will also be shifted so as .to-move .the pinsorprojections 85 into the ath of mbvement of the pins or projections 79of the number bearing members 41. 'In order that the mechanism.ma-y bearranged compactly as possible the member 81 may be provided shafts 27project. The member'81 will have moved into a position to cause the pins85 to project into the path of movement of the pins or projections 79just as the gears 74 move into positions to mesh with the gears 71. thatis necessary is to again actuate the controller bar or key to depressthe stem 56 (see Fig. 4) to lock the gear 46 to the shaft 42. This willimpart rotation to the shaft 24 in the manner already described and theshafts 21 will be. correspondingly rotated.- Under these conditions therotary motion of the shaft 21 will then be imparted to the shafts 27through the medium of the meshing gears 71, 74. members have reachedtheir zero positions the pins 71 thereon will enga e the respective pinsor projections 85 on t e member 81 operating positions is accomplishedin the present exemplification of the invention by {manually actuatedmechanism which will now 'be described. I r

Extending transversely of the shafts 21., preferably below the latterand adjacent the gears 71, is a rock shaft 86 (see Figs. 1, 3, 5, 10)journaled in suitable bearings and pivotally supported by this shaft area series When the parts are thus set, all

When the number bearing of yoke-shaped members designated generallyliythe reference numeral 87. One of these yoke-shaped members 87 isprovided for each of-the number bearing members 41 with the exception ofthe unit number bearing members, and comprises an arm ,88

having a laterally projecting pin or 111g 89, .which latter projectsinto a circumferential recess 90 in the sleeve 73. An elastic member 91is connected with each of the yokes 87 and also to a suitable fixedsupport. These elastic members 91 tend normally to move the gear 74 outof mesh with thegear 71 so that in order to move the gear 74 into aposithat it will mesh with the gear 71, it is necessary to rock theyoke-shaped members 87 against the "tension of these elastic membersThis isiacco'mplished by rocking the shaft 86, which latter is providedwith a series of laterally projectingpins 92 (see Figs. 1 and 10),normally spaced a slight distance from the body portion of the yoke- Ishaped members, but in a position that when the shaft 86 is rockedin'one direction, the pins will engage the yoke-shaped member to rockthe latter and thereby shift the gear 74 through the mediumof the arm88. The

' 74 out of mesh with the gears 71.

.99 is adapted to be automatically rocked by shaft 86 may be rocked bymeans of an arm or lever designated generally by the reference numeral93 (see particularly Fig. 10), arranged in any convenient position forthe operator, preferably adjacent the front of the machine. This lever93 is pivotally mounted intermediate its ends as at 94 and is connectedby means of a link 95 with an arm 96 on the shaft 86. The link 95 isprovided with a pin and slot connection 97, 98, with the arm 96 for apurpose to be hereinafter set forth. Thus it will be manifest that whenthe lever 93 is moved from the position shown in Fig. 10, forwardly, torock the lever about its pivot 94, the link 95 will beshifted and thisin turn will rock the shaft 86 through the medium of the arm 96 and thegear 74: will be positioned so as to mesh with the gear 71. In order tolock the parts in this adjusted position, any suitable mechanism may beprovided, such for instance as a catch designated generally by thereference numeral 99 (see Fig. 10) which is pivoted intermediate itsends as at 100. One extremity 101 of this catch is provided with ashouldered portion adapted to cooperate with a shouldered portion 102 onthe lever 93. An elastic member 103 is provided and tends normally tomove the shouldered extremity 101 of the catch 99 in.a direction toengage over the shoulder 102 when the lever is rocked and yields topermit the shoulder 102 to assume a position to be engaged by theshouldered portion 101. hen the shaft 86 is thus rocked to position thegears 74 to mesh with the gears 71, tension will be created upon theelastic members 91 so that when the catch 99 is rocked to release thelever 93, the tension thus created upon the elastic members91 will rockthe shaft 86 in the opposite direction to move the gears The catch meansof a cam 101 (see'Figs. 2 the shaft 24 which is adapted to extremity 105of the catch at the of the revolution of the shaft 2 1.

The gear 74 of the .units number bearing members (see Fig. 5) is adaptedto be shifted by an arm 105 similar to the arms88 of the yoke-shapedmembers 87, with the exception that the arm 105 is connected to theshaft 86 for movement therewith. This arm 105 is also provided with alaterally projecting portion 106 (see also Fig. 6) which projects intothe circumferential recess 90 of the sleeve 73 so that when the shaft 86is rocked in the manner already described, the gear 74 of the unitsnumber bearing member will be correspondingly shifted.

Mechanism whereby the carrying from one number bearing member to thenext adj acent number bearing member ofv a higher denomination may beeffected will now be and 10) on engage the completion described. Securedto each of the shafts-21 is a one-toothed gear 107 (see Figsgl and 8)which is preferably arranged in proximity with the respective gears 71and a gear 108 is connected with each of the sleeves 73 and is adaptedto be moved with the sleeve 73 when the latter is shifted. The gears 74,108 are connected to the respective sleeves 73 in such a manner thatthey will be spaced from each other a distance less than the distancebetween the respective gears 71, 107, so that when the sleeve 73 isshifted in one direction or the other so as to cause one of the gears74-, 108, to be positioned so as to mesh with the respective gears 71,107, the other of the gears 74, 108 will assume a position out of meshwith its respective gear on the shaft 21. In order to accomplish thisthe gears 71, .107 are so arranged that the SlBGVG 73 must be shifted inone direction, for instance, to the right as shown in Fig. 1 when thecarrying operation is to take place, and to the left when the clearingoperation is to take place. Inasmuch as the carrying operation isautomatic, it is necessary that the sleeves 73 should be shifted on therespective shafts 27 independently with respect to each other and alsoindependently with respect to the motion of the shaft 86. For thisreasonthe yokeshaped members 87 are provided, and are mounted looselyupon the shaft 86.

As has already been stated, the normal tendency of, the elastic members87 is to move the gear 74: out of mesh with respect to the gears 71 andas this movement of the gear 7-1 will shift the sleeve 73 to positionthe gear 108 so that it will mesh with the one-toothed gear 107 it willbe manifest that mechanism must be provided for normally holding thegear 108 in a position that it will not mesh with the gear 107. At thesame time, however, mechanism should be provided for releasing this gear108 at the proper time when the carrying operation is tobe effected.Suitable mechanism for accomplishing this comprises an arm 109 (seeparticularly Figs. 8 and 9) which is pivotally mounted upon any suitablefixed sup port 110, preferably the upright 17 and this arm 109 projectsinto the path of movement of the extremity 111 of the sleeve 73 and anelastic'member 112 tends normally to move the arm 109 about its ivot 110in a direction to engage the end of the sleeve 73 to hold thegear,108 ina position where it Will not mesh with the gear 107 and to maintain theelastic member 87 under tension. A stop 109 is provided for eachof-these arms 109 for limiting the movement of the latter under theinfluence of the elastic member 112. It'will therefore be manifest thatwhen the arm 109 is rocked to release the sleeve 73, the elastic member91 will swing the yokeshaped member 87 about its pivot to move the gear108 into a position to mesh with the gear 107. The arm 109 is rocked bymeans of a tooth 113 rotatable with the shaft 27 and which tooth engagesan extension 114 of the arm. The tooth 113 is'so arranged that when thenumber bearing member crosses the zero point, it will engage theextension 114 and rock the arm 109 against the tension of the elasticmember 112. After the tooth 113 passes out of engagement with theextension 114 on thearm 109 the arm will be moved by the elastic memberso that it will engage and rest upon the periphery of a portion of thesleeve 73.

After the completion of the calculation it is necessary to shift thegears 108 back to their original positions, that is, so that they willnot be in mesh with the gears 107. This operation is effected by rockingthe shaft 86 and in order to automatically rock the shaft, one of theshafts 21 is provided with a cam or tooth 115 (see Figs. 5 and 6) whichis adapted to engagea lateral projecti'on 116 on the shaft 86 to rockthe latter against the tension of an elastic member 117. -When the camor projection 115 passes out of engagement with the projection 116 on ashaft 86, the tension of the elastic member 117 will restore the shaft86 to its original position. When the shaft 86 is thus rocked, the pinsor projections 92 thereon will move into engagement with the bodyportions of the yoke-shaped members 87 to rock the latter and therebyshift the sleeves 73 into such positions that the elastic members 112will move the arms 109 behind the ends 111 of the sleeves 73 to hold thelatter in position. g

In order to lock the number-bearing members 41 against accidentalmovement by the vibration of the machine or otherwise, when the cams 69are moved out of locking posi tion with respect to the star or toothedwheels-68 on the shafts 27, dogs 118 (see Figsl and 3) are providedwhich coiiperate with star or toothed wheels 119 on the shafts 27. Ashas already been stated, the gears 28 and the slides 32 are returned totheir normal positions, that is, so that the gears 28 will not mesh withthe gears 26, by the member 62, that is, by rocking the shaft 64. It isadvisable that these gears 28 be shifted to their normal or inactivepositions before the number bearing members or the register is cleared.In order therefore to insure this position of the gears 28, the, lever93 is provided with a portion 120 (see Figs. 10 and 12) upon which ismounted an anti-friction roller 121. This roller 121 is so-positionedthat when the lever-93 is rockedabout its pivot 94, the roller willengage one of the arms 63 and move the latter to'rock the shaft .64 in adirection to cause the member. 62 to engage the projecting portions 35of the slides 32, to shift the latter and the respective gears 28 intotheir inoperating positions so that when the shafts 21-are set intomotion after the clearing mechanism has been set, no damage will becaused to'the mechanism. If desired, a guide 122 may be provided for theend of the lever 93. It has also been set forth that in order to connectthe power shaft 42 with the shaft 44 and thereby impart rotation to theshaft 24 and the shafts 21, it is necessary to trip the dog 51 (see Fig.4). This tripping of the dog 51 rocks the shaft 52 which rockingmovement is effected through the medium of the members 57 and 58, in onedirection. The shaft is rocked in the opposite direction by means of theelastic member 53.

In clearing the number bearing members it is first necessary to setthe-gears 74 by shifting the lever 93 (see Fig. 10) and in order thatthe parts may operate, these gears must be actually set with respect tothe gears 71. It will be manifest that unless these gears arethus-properly set, before the actuation of the controller bar or key totrip the dog 51, the actuation of the latter might .cause injury to themachine. In order therefore to positively insure the correct setting ofthe gear 74and ,to prevent the actuation of the controller bar or keyand the tripping of the dog-'51 before the gears 74 are set, suitablelocking mechanism is provided which will now be described.

Extending transversely of the machine and at any convenient point,preferably adjacent the lever 93, (see Figs. 2, 4, 10, 11, 12 and 13) isa bar or rod123 which is supported in any desired or suitable mannerpreferably by means of fastening devices 124 passing through slots 125in the bar or. rod 123. One extremity of this bar or rod 123 is bent ordeflected downwardly as at 126 to extend into the}. path of movement ofa pin or projection 127 on the shaft 52. The other extremity 128 of thebar provided with slots 130 through which fas-.

toning devices 131 pass. This slide 129 is provided with an arm 132which is loosely connected as at .133 with the lever 93. The slide 129is arranged transversely with respect to the bar or rod 123 and with oneedge adjacent the upwardly deflected. portion 128 of the bar or rod 123.This edge of the slide 129 is provided with recesses 13%, 135, adaptedto receive the upwardly defle'oted extremity 128 of the bar or rod 123.when the recesses are properly positioned with respect to suchextremity. It will thus be manifest that when the lever 93 is shiftedabout its point of pivotal support 94, the slide 129 will becorrespondingly shifted rod 123 when the lever 93 is in one or the otherof its proper positions, that is, to move the gear 74 either into or outof position to mesh with the gear 71. These recesses 134, 135, arespaced from each other and it will thus be manifest that unless theslide 129 is properly shifted, the recesses 1 134, 135 will not be inposition to receive the extremity 128 of the bar or rod 123. If'therecesses are properly positioned with respect to the extremity 128, itwill be manifest that the shaft 52, (see Fig. 4), may be rocked in themanner already described and the dog 51 will then be shifted to releasethe dog 45. If the recesses 134, 135 are not in a proper position toreceive the extremity 128 of the bar or rod 123, the shaft 52 cannot berocked inasmuch as the pin orprojection 127 will engage the dependingportion 126 of the bar or rod 123 and any movement of the latter willcause the extremity 128 to engage the edge of the slide 129 and theshaft 52 will be held against movement. An elastic member 136 isprovided andis connected to the bar or rod 123 and to a suitable fixedsupport and tends normally to move the slide 123 in a direction to movethe deflected extremity 128 out of the recesses 134, 135. It willtherefore be manifest that unless the gears 74 are properly positionedwith respect to the gears 71, when it is desired to clear the machine,the controller bar or key cannot be actuated as the dog 51 will belocked against actuation.

The entire mechanism, with the exception of the extremity of the lever93, the keys 40,

the stem 56 of the controller bar or key and the extremity of the powershaft 42, may be inclosed within the casing 137, as will be understood.

From the above description it is thought that the operation of thismachine will be clearly apparent but briefly stated, it is as follows:Assuming the parts to be in the position shown in Fig. .1 and with thenumber bearing members 41 in a zero position, the operator by theactuation of one ofthe keys 40 of each series sets the selectingmechanism for controlling the degree of rotation of the respectivenumber bearing members 41. by rocking the shaft 39 to re lease thesliding members 32. Thus released,

the elastic members 34 will adjust the slid-' ing members 32 and thegears 28 to move theminto a position with respect to the gears 26,corresponding to the particular key actuated. Thus set. the controllerbar or key is actuated and this will shift the stem 56 (see Fig. 4) torock the dog 51 and the shaft This willrelease the dog 45 and the gear46 will be locked to the power shaft 42. The rotary motion of the gear46 will be imparted to the shaft 48 through the meshing gear 47 andmotion of the shaft 48 will be imparted to the shaft 24 through themedium of the meshing gears 49, 50, (see Fig. 2). When the shaft 24 isrotated, the shaft 21 will be rotated and the rotary motion of theseshafts 21 will be imparted to the shaft 27 through the medium of thegears 26, 28. When the shaft 21 commences to rotate, the cams willpermit the dogs 69 to move out of locking position with the toothedwheel 68. The shafts 27 will rotate the number bearing members 41 and asthe respective number bearing members cross the zero point, the teeth113 (see Fig. 8) will engage the extensions 114 on the respective arms109 to shift the latter against the tension of the springs 112, therebyreleasing the sleeves 73. Thus released, the elastic members 91 willshift the yokeshaped members 87 to move the sleeves 73 in a direction toposition the gears 108 so that they will mesh with the respective gears107. After the completion of the calculation, the cam 115 on one of theshafts 21 (see Figs. 5 and- 6) will engage the projection 116 on theshaft 86 to rock the latter and thereby cause the pins or projections 92thereon to engage the yoke-shaped members 87 to move the latter to shiftthe sleeve 73 and thereby move the gears 108 into a position that theywill not mesh with the gears 107. When the sleeves 73 are thus shifted,the elastic members 112 (see Fig. 8) will move the arms 109 behind thesleeves 73 and lock the sleeves and the gears 108 in this position andwill also maintain the springs 91 undertension. Just at the completionof the calculation, the shaft 64 will be rocked and the member 62 willengage the depending portion 35 on the slides 32 to shift the latter andthe gears 28 on the shafts 27 into their normal positions or out of meshwith the gears 26. This operation may be repeated as many times asdesired. When it is desired to clear the machine, that is, to remove theamount registered on the number bearing members 41, the lever 93 isshifted to rock the shaft 86 to cause the pins of projections 92 (seeFig. 10) thereon to shift the yoke-shaped members 87, and to rock thearm 105 (see Fig. 5) to move the sleeves 73 in a direction to positionthe gears 74 so that they will mesh with the respective gears 71. 1, 17hen the gears 74 are properly positioned, the slide 129 (see Figs. 11and 13) will have assumed a position that the recess 135 will bepositioned to receive the extremity 128 of the bar or rod 123. Thuspositioned, the stem 56 of the controller bar or key, (see Fig. 4) maybe actuated to rock the dog and the shaft 52 so as to release the dog 45and thereby connect the power shaft with the mechanism so that theshafts 21 will be rotated and the shafts 27 will then be r0- tatedthrough the medium of the gears 71, 74. When the respective numberbearing members reach the zero. position, that is, with the zero inreading position, the space 75 on the gears 74 will be adjacent theteeth of the gears 71, so that the respective gears 71 will not move thegears 74. When the gears 74 are positioned to mesh with the gears 71,the member 81 will be adjusted to 10 project the pins 85 into the pathof movement of the pins 79 on the number bearing members 11. When thespace 75 is in proximity to the teeth of the gears 71 the pins 79 willengage the pins 85 on the memher 81 and the number bearing member 41will be arrestedin its movement and held against overthrow. After themachine has been thus cleared the lever 93 may be shifted in theopposite direction about its pivot, to move the gears 74.- out of meshwith the gears 71 and when the gears 7 1 have been properly positionedby this movement of they lever 93, the other recess 134. of the slide129 will be in a position to receive the ex- 26 tremity 128 of the baror rod 123 to permit the machine to be operated for calculation.

Before thelever 93 can be shifted to throw the clearing mechanism out ofoperation,

the catch 99 must be tripped and this is -40 operate the members toclear the latter of such amounts, and means adapted to be set bythe:last said means for controlling the degree of movement of themembers by the said clearing mechanism.

- 2. In a machine of the class described, the

combination of a registry embodying rotatable number bearing members,means for rotating the same-to register amounts thereon, means foralso-rotating the members in the samev direction as they are rotated toregister, to clear them of suchamounts, and means adapted to be set toarrest the movement of the said members by the said clearing mechanism.

3. In a machine of theclass described, the combination of a registerembodying rotatable number bearing members, meansfor rotating the sameto register amounts thereon, means for also rotating the members in thesame direction in which they are rotated to register, to clear them ofsuch amounts, and a stop adapted to be set to arrest the movement of thesaidmembers by the said clearing mechanism.

4. In a machine of the class described,

. anism.

and means for automatically releasing the the combination of a registerembodying rotatable number bearing members rotatable in one directiononly, means for rotating the same to register amounts thereon, means foralso rotating the members to 5 clear them of such amounts, and meansadapted to be set to arrest the movement of the said members by the saidclearing mecha constant direction of rotation, mechanism for impartingvariable movements to said members to registeramounts thereon, mechc.

anism operatively connected with the first recited mechanism and adaptedto be set to actuate said members to clear the latter of such amounts,and means for locking the second recited mechanism in its set position.85.

6. In a-machine of the class described, the combination of a registerembodying rotatable number bearing members having a constant directionof rotation, mechanism for imparting variable movements to said membersto register amounts thereon, mechanism operatively connected With thefirst recited mechanism and adapted to be set to actuate said members toclear the latter of such amounts, means for locking the second recitedmechanism in its set porsition and means for releasing the latter.

7. In amachine of the class described, the combination of a registerembodying rotatable number bearing members having a constant directionof rotation, mechanism for imparting variable movements to said membersto register amounts thereon, mechanism operatively connected with thefirst recited mechanism and adapted to be set to actuate said members toclear the latter of such amounts, means for locking the second recitedmechanism in its set positiomI' latter.

8. In a machine of the class described, the combination of a registerembodying! rotatable number bearing members rotatable .in one directiononly, mechanism -for iniparting variable movement to'the"member's 1-1toregister amounts 'thereon, mechanism adapted to be setfor alsoimparting rota?- tion to said members for clearingithem of such amounts,and means controlled by the last recited mechanism and adapted to be 2set to limit the movement imparted .to the said members by the secondrecited mecha nism.

9. In a machine of the class described,

the combination of a register embodyingzmfi rotatable number bearingmembers rotatable in one direction only, mechanism for 1mpart ngvariable movement to the members to register?" amounts thereon,mechanism adapted to beset for imparting rota-13 d of the classdescribed, 75 the combination of a register embodying tion to saidmembers for clearing them of such amounts, and means operating in unisonwith the last recited mechanism and adapted to be set to limit themovement imparted to the said members by the second recited mechanism.

10. In a machine of the class described, the combination 'of a registerembodying rotatable number bearing members rotatable in one directiononly, mechanism for imparting variable movement to the members toregister amounts thereon, mechanism adapted to be set for also impartingrotation to said members for clearing them of such amounts, and stopsadapted to be set by the setting of the last recited mechanism and withwhich the number bearing members cooperate whereby the members will bearrested in their movement by the second recited mechanism.

11. In a machine of the class described, the combination of a registerembodying rotatable number bearing members rotatable in one directiononly, mechanism for imparting variable movement to the members toregister amounts thereon, mechanism adapted to be set for also impartingrotation to said members for clearing them of-such amounts, and meansadapted to be set by the setting of the last recited mechanism and withwhich means the number bearing members cooperate,,whereby the memberswill be arrested in their movement by the second recited mechanism whenthe members reach predetermined positions.

12. In a machine of the class described, the combination of a registerembodying rotatable number bearing members, means for rotating saidmembers to register amounts thereon, means for also rotating the membersin the same direction in which they are rotated for registering, toclear them of such amounts, and means for preventing overthrow of themembers when actuated by the second recited means.

13. In a machine of the class described, the combination of a registerembodying rotatable number bearing members having a constant directionof rotation, means for rotating said members to register amountsthereon, means for also rotating the members in the same direction inwhich they are rotated for registering to clear them of such amounts,and means for preventing overthrow of-the members when actuated by thesecond recited means.

1 In a machine of the class described, the" combination of a registerembodying rotatable number bearing members, means for actuating the sameto register amounts thereon, means ada 'ited to be set to also actuatesaid members to clear the latter of such amounts, means for renderingthe second recited means inactive when the number bearing members assumepredetermined positions, and means for preventing overthrow of the saidmembers when actuated by the second recited means.

15. In a machine of the class described, the combination of a registerembodying rotatable number bearing members having a constant directionof rotation, means for actuating the same to register amounts thereon,means adapted to be set to also actuate said members to clear the latterof such amounts, means for rendering the second recited means inactivewhen the number bearing members assume predetermined positions, andmeans for preventing overthrow of the said members when actuated by thesecond recited means.

16. In a machine of the class described, the combination of a. registerembodying rotatable number bearing members, means for actuating 'thesame to register amounts thereon, means adapted to be set to alsoactuate said members to clear the latter of such amounts, means forrendering the second recited means inactive when the number bearingmembers assiune predetermined positions, and means embodying a stopmovable into and out of operating-position for preventing overthrow ofthe said members when actuated by the second recited means.

17. In a machine of the class described, the combination of a registerembodying rotatable number bearing members, means for actuating thesameto register amounts thereon, means adapted to be set to also actuatesaid members to clear the latter of such amounts, means for renderingthe second recited means inactive when the number bearing members assumepredetermined positions, means embodying a stop movable into operatingposition for preventing overthrow of the members when actuated by thesecond recited means, and means tending normally to move the stop out ofoperating position.

1.8. In a machine of the class described, the combination of 'aregister, embodying rotatable number bearing members, means foractuating the same to register amounts thereon, means adapted to be setto also actuate said members to clear the latter of such amounts, meansfor rendering the second recited means inactive when the number bearingmembers assume predetermined ,positions, a stop for preventing overthrowof the number bearing members when actuated by the second recited means,and means tending normally to move the stop out of operating position,said stop adapted to be rendered active against the tension of the lastrecited means by the setting of the second recited means.

19. In a machine of the class described, the combination of a drivingand a driven element, a rotatable number bearing member connected withthe driven element for rotaelements for rotating the numberbearingmember to add amounts thereon, means for controlling the lastsaid means, additional means for connecting the said elements foroperating the number bearing member to clear the same of such amounts,and means for controlling the last said means at will.

20. In a machine'of the class described, the combination of a drivingand a driven element, a rotatable number bearing member connected withthe driven element for rotation therewith and having aconstant'direction of rotation, means for connecting said elements for rotatingthe number bearing member to add amounts thereon, means for controllingthe last said means, additional means for connecting the said elementsfor operating the'number bearing member to clear the same of suchamountsyand means for controlling the last said meansat will. 21. In amachine of the class described, the combination of a driving and adriven element, 'a rotatable number'bearing member connected with thedriven 'element for rotation therewith, means for connecting saidelements for rotating the number hear ing member to add amounts thereon,means for controlling the last said means, additional means forconnecting the said elements for operating the number bearing member toclear the same of such amounts, means for controlling. the last saidmeans at will, and means whereby the last recited connecting means willbe rendered inactive automatically when the said number bearing memberassumesa predetermined position. 22. In a machine of the classdescribed, the combination'of a driving and a driven element,a'rotatable number bearing member connected with the',driven element forrotation therewith, means for connecting said elements for rotating thenumber hearing member to add amounts thereon, means for controlling thelast said means, additional means for connecting the said elements foroperating the number bearing members to clear the same of such amounts,means for controlling the last said means at will, means whereby thelast recited connecting'means will be rendered inactive automaticallywhen the number bearing mem ber assumes a predetermined position, andmeans for preventing overthrow of the number bearing member when thelast recited connecting means is rendered inactive.

2,3. In 'a machine. of the class described,

I the combination of a driving and a driven element, a rotatable numberbearing member connected with the driven element for rotation therewith,means for connecting said elements for rotating the number bearingmember to add amounts thereon, means for controlling the lastsaid means,additional means for connecting the said elements for operating thenumber bearing members to clear the same of such amounts, means for,

necting means is rendered inactive, said overthrow .preventing meansembodying a stop'controlleo by the second recited connecting means.

' '24. In a machine of the class described, the combination of. adriving and a driven element, a rotatable number bearing memberconnected with the driven element for rotation therewith, means forconnecting said; elements for rotating the number bear,- ing' member toadd amounts thereon, means for controlling the last said means,additional means for connecting the said elements for operating thenumber bearing members to clear the same of such amounts, means forcontrolling the last said means at will, means whereby the last recitedconnecting means will be rendered inactive automaticallywhen the numberbearing member assumes a predetermined position, and means forpreventing overthrow of the number bearing member when the last re-'cited connecting means is rendered inactive, said overthrow preventingmeans embodying a normally inactive stop adapted to be rendered activewhen the second recited connecting means is rendered active.

25. In a machine of the class described, the combination of a drivingand a driven element, a rotatable number bearing member connected withthe driven element for rotation therewith, means for connecting saidelements for rotating the number. bearing member to add amounts thereon,means for controlling the last said means, additional means forconnecting the said elements for operating the number bearing members toclear the same of such amounts, means for controlling the last saidmeans at will, means whereby the'last recited connecting means will berendered inactive automatically when the number bearing member assumes apredetermined position, and means ior preventing overthrow of the numberbearing member when the last recited connecting means is renderedinactive, said overthrow preventing means embodying a stop adapted to berendered active and mactirve by the second recited connecting means whenthe latter is rendered active and inactive respectively. 7

26. In a machine of the class described, the combination of a drivingand a driven element, a rotatable number-bearing member connected withthe'driven element for rotation therewith, means for connecting saidelements for rotating the number bearing member to add amounts thereon,means for controlling the last said means, additional means forconnecting the said elements for operating the number bearing members toclear the same of such amounts, means for controlling the last saidmeans at will, means whereby the last recited connecting means will berendered inactive automatically when the number bearing member assumes apredetermined position, means for preventing overthrow of the numberbearing member when the last recited connecting means is repderndinactive, said overthrow preventing means embodying a stop adapted to berendered active and inactive by the second recited connecting means whenthe latter -is rendered active and inactive respectively, and means forlocking the stop and the second recited connecting means in activepositions.

27. In a machine of the class described, the combination of a drivingand a driven element, a rotatable number bearing member connected withthe driven element for rotation therewith, means for connecting saidelements for rotating the number bearing member to add amounts thereon,means for controlling the last said means, additional means forconnecting the said elements for operating the number bearing members toclear the same of such amounts, means for controlling the last saidmeansat will, means whereby the last recited connecting means will berendered inactive automatically when the number bearing member assumed apredetermined osition, means for preventing overthrow oi the numberbearing member when the last recited connecting means is renderedinactive, said overthrow preventing means embodying a stop adapt ed tobe rendered active and inactive by the second recited connecting meanswhen the latter is rendered active and inactive re; spectively, meansfor locking the stop and the second recited connecting means in activepositions, and means for automatically unlocking the locked parts.

28. In a machine of the class described, the combination of a drivingand a driven element, a number bearing member having a constantdirection of movement and connected with the driven element for rotationtherewith, means adapted to connect the said elements to operate thenumber bearing member to register amounts thereon, additional meansadapted to connect said elements to operate the number bearing member toclear the latter of such amounts, the last said means embodyingcooperating gears having relative lateral movement, and means forimparting such relative movement to the gears to render said connectionoperative and inoperative at will.

29. In a machine of the class described,

the combination of a driving and a driven element, a number bearingmember having a constant direction of movement and connected with thedriven element for rotation therewith, means adapted to connect the saidelements to operate the number bearing member to register amountsthereon, additional means adapted to connect said elements to operatethe number bearing memher to clear the latter of such amounts, the lastsaid means embodying cooperating gears having relative lateral movement,means for imparting such relative movement to the gears to render saidconnection operative and inoperative at will, and means controlled bythe relative movement of the gears for preventing overthrow of the number bearing member.

30. In a machine of the class described, the combination of a drivingand a driven element, a number bearing member having a constantdirection of movement and connected with the driven element for rotationtherewith, means adapted to connect the said elements to operate thenumber bearing member to register amounts thereon, additional meansadapted to connect said elements to operate the number bearing member toclear the latter of such amounts, the last said means embodyingcooperating gears having relative lateral movement, means for impartingsuch relative movement to the gears to place them in and out of positionto mesh, and means 'for disconnecting said gears when the number bearingmember assumes a predetermined position and while the gears are inposition to mesh. 7

31. In a machine of the class described, the combination of a drivingand a driven element, a number bearing member having a constantdirection of movement and connected with the driven element for rotationtherewith, means adapted to connect the said elements to operate thenumber bearing member to register amounts thereon, additional meansadapted to connect said elements to operate the number bearing member toclear the latter of such amounts, the last said means embodyingcooperating gears having relative lateral movement, means for impartingsuch relative movement to the gears to place them in and out of positionto mesh, means for disconnecting said gears when the number bearingmember assumes a predetermined position and while the gears are inposition to mesh, and means for preventing overthrow of the numberbearing member when the gears are thus disconnected;

32. In a machine of the class described, the combination of a drivingand a driven element, a number bearing member having a constantdirection of movement and connected with the driven element for rotationtherewith, means adapted to connect the said elements to operate thenumber bearing member to register amounts thereon, additional meansadapted to connect'said elements to operate the number bearing Inem- 7'when the number bearing member assumes a predetermined position andwhile the gears are in position to mesh, and: means controlled by therelative-movement of the gears for preventing overthrow of the numberbearing members when the gears are thus disconnected.

33. In a machine of the class described, the combination of a drivingand a driven element, a number bearing member having a constantdirection of movement and connected with,the driven element for rotationtherewith, means adapted to connect the said elements to operate thenumber bearing member to register amounts thereon, additional meansadapted to connect said elements to operate the number bearing member toclear the latter of such amounts, the

last said means embodying cooperating gears having relative lateralmovement, means for imparting such relative movement to the gears toplace them in and out of position to mesh, means for disconnecting saidgears when the number bearing member assumes a predetermined positionand While the gears are in, position to mesh, anda stop adapted to beset by the relative movement of the gears for preventing overthrow ofthe number bearing member when the gears are thus disconnected.

34. 'In' a machine of the class described, the combination of a drivingand a driven element, a number bearing member having a constantdirection of rotation, connected with the driven element for-rotationthereby, means connecting the' elements for rotating the number bearingmember to register amounts thereon, additional means for connecting theelements to rotate the number bearing member to clear the latter of suchamounts, the last recited means em bodying cooper-a ting gears movableinto and out of position to mesh, and means for thus moving thegears,one of said gears being mutilated whereby the gears will be renderedinactive when the number bearing member reaches a predeterminedposition.

35. Ina machine of the class described, the combination of a driving and'a driven element, a number bearing member having a constant directionof rotation, connected with the driven element for rotation thereby,means connecting the elements for rotating the number bearin member toregister amounts thereon, ad 'tional means for a constant direction of.rotation, connected with the driven element for rotation thereby, meansconnecting the elements for rotating the number bearing member toregister amounts thereon, additional means for connecting the elementsto rotate the number bearing member to clearthe latter of such amounts,the last recited means em bodying cooperating gears movable into and outof position to mesh, means for thus moving the gears, one of said gearsbeing provided with a mutilated portion whereby the gears will berendered inactive when the number bearing member reaches a predeterminedposition, and means for pre venting overthrow of the number bearingmember when the gears are thus rendered inactive.

37. Inamachine ofthe class described, the combination of a driving and adriven element, a number bearingmember having a constant direction ofrotation, connected with the driven element for rotation thereby, meansconnecting the elements for rotating the number bearing member toregister amounts thereon, additional means for connecting the elementsto rotate the number bearing member to clear the. latter of suchamounts, the last recited means embodying cooperating gears movable intoand out of position to mesh, means for thus moving the gears, one ofsaid gears being provided with a mutilated portion Whereby the gearswill be rendered inactive when the number bearing member reaches apredetermined position, a stop carried with the number bearing memberand a stop controlled by the movement of the gears into and out ofmeshing position and cooperating with the first recited stop to preventoverthrow of the number bearing member.

In a machine of the class described, the combination of a driving and adriven element, a register embodying a rotatable number bearing memberconnected with the driven element for rotation thereby and having aconstant direction of rotation,

hie-ans for connecting said elements to retate the number bearing memberto register amounts thereon, additional means connectmg said elements torotate the number bearing member to clear the latter of such amounts,the last recited means embodying cooperating gears adapted for relativelateral movement, means for imparting such element, a register embodyinga rotatable number bearing member connected with the driven element forrotation thereby and having a constant direction of rotation, means forconnecting said elements to rotate the number bearing member to registeramounts thereon, additional means con meeting said elements to rotatethe number bearing member to clear the latter of such amounts, the lastrecited means embodying cooperating gears adapted for relativelateralmovement, means for imparting such relative movement to place the gearsin position to mesh, means for locking the parts in. such position,power means for imparting motion to the driving element, means forrendering the gears inactive while in meshing position when the numberbearing member assumes a predetermined position, and means controlled bythe power mechanism for automatically unlocking the parts.

40. In a machine of the class described, the combination of a drivingand a driven element, a register embodying a rotatable numberbearing-member connected with the driven element for rotation therebyand having a constant direction of rotation, means for connecting saidelements to rotate the number bearing member to register amountsthereon, additional means connecting said elements torotate the numberbearing member to clearthe latter of such amounts, the last recitedmeans embodying cooperating gears adapted for relative lateral movement,means for imparting such relative movement to place the gears inposition to mesh, means for locking the parts in such position, powermeans for impart ing motion to thedrivin element, means for renderingthe gears inactive while in meshing position when the number bearingmember assumes a predetermined position, means for preventing overthrowof the number bearing member when the gears are thus rendered inactive,and means, controlled by the power mechanism for auto maticallyunlocking the parts.

41. In a machineof the class described, the combination of a registerembodying a rotatable number bearing member having a constant directionof rotation, operating mechanism therefor for registering amountsthereon, means adapted to he set to operate the said member to clear thesame of such amounts, means embodying a lever for setting such parts, acatch cooperating with the lever for locking the parts in set position,power mechanism for imparting motion to the said operating mechanism anda cam operating in unison with the said operating mechanism forautomatically tripping the catch.

42. In a machine of the class described,

the combination of a register embodying a rotatable number bearingmember having a constant direction of rotation, operating mechanismtherefor for registering amounts thereon and embodying selectingmechanism adapted to be set for imparting variable movement to themember and keys for setting said mechanism, means adapted to be set toclear the said member of such amounts, means embodying a lever forsetting the last recited means, and means controlled by said lever forrestoring the said selecting mechanism.

43. In a machine of the class described, the combination of aregister-embodying a rotatable number bearing member having a constantdirection of rotation, operating mechanism therefor for registeringamounts thereon and embodying selecting mechanism adapted to be set forimparting variable movement to the member and keys for setting saidmechanism, means adapted to be set to clear the said member of suchamounts, means embodying a lever for setting the last recited means,means controlled by said lever for restoring the said selectingmechanism, power mechanism, a normally inactive connection between thepower and the said operating mechanism, means for controlling theconnection, and means for preventing actuation of the last said meansuntil the first recitedmeans'is properly set.

44. In a machine ofthe class described, the combination of a registerembodying a rotatable number bearing member having a constant directionof rotation, operating mechanism therefor for registering amountsthereon and embodying selecting mechanism adapted to be set forimparting variable movement to the member and keys for settingsaidmechanism, means adapted to be set to clear the said member or suchamounts. means embodying a lever for setting the last recited means,means controlled by said lever for restoring the said selectingmechanism, power mechanism. a nor mally inactive connection between thepower and the said operating mechanism. means for controlling theconnection, and means operatively related to said lever for looking thelast recited means against actuation until the first recited means isproperly set.

45. In a machine of the class described, the combination of a registerembodying a Sad rotatable number bearing memberhaving a constantdirection of rotation, operating mechanism therefor for registeringamounts thereon and embodying selecting mechanism adapted to be set forimparting variable movement to the member and keys for setting saidmechanism, means adapted to be set to clear the said member of suchamounts, means embodying a lever for setting the last recited means,means controlled by said lever for restoringthe said selectingmechanism, power mechanism, a normally inactive connection between thepower and the said operating mechanism, means for controlling theconnection, and means-for locking the last said means against actuationuntil the first said means is properly set, said locking means embodyinga shoul-' dered element and a slide provided with a recess to receivesaid shoulder, said slide being movable to displace the recess withrespect to the said shoulder.

46. In a machine of the class described, the combination of aregisterembodying a rotatable number bearing member having a constant directionof rotation, operating mechanism therefor for registering amountsthereon and embodying selecting mocha 'ing a shouldered element and aslide provided with a recess to receive said shoulder, said slide beingoperatively connected with the lever and movable thereby to displace therecess with respect to the said shoulder.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 7th day of July, A. D.1911.

OTTO MALCHER.

Witnesses:

NINA J. HALSNE, ESMIE WALTON.

